External roller shutters (external roller shutter boxes) are the roller shutter boxes that are installed outside and above the lintel (outside and above our opening – masonry). Their advantage is that by installing the roller shutters outside the lintel, their box does not reduce the height of the frame (we do not lose height). Their disadvantage is that they must be electric, and that the boxes, usually 18cm x 18cm, are visible from the outside.
See the disadvantages and advantages of top-mounted and external roller shutters.
Alternatively, see which types of roller shutters can be made into external roller shutters.
